TY - JOUR
T1 - H.E.S.S. follow-up of BBH merger events
AU - the H.E.S.S. Collaboration
AU - Ashkar, Halim
AU - Brun, Francois
AU - Hoischen, Clemens
AU - Konno, Ruslan
AU - Ohm, Stefan
AU - Prokoph, Heike
AU - Schüssler, Fabian
AU - Arroyo, Monica Seglar
AU - Zhu, Sylvia J.
AU - Abdalla, H.
AU - Aharonian, F.
AU - Ait Benkhali, F.
AU - Angüner, E. O.
AU - Arcaro, C.
AU - Armand, C.
AU - Armstrong, T.
AU - Backes, M.
AU - Baghmanyan, V.
AU - Barbosa Martins, V.
AU - Barnacka, A.
AU - Barnard, M.
AU - Batzofin, R.
AU - Becherini, Y.
AU - Berge, D.
AU - Bernlöhr, K.
AU - Bi, B.
AU - Böttcher, M.
AU - Boisson, C.
AU - Bolmont, J.
AU - de Bony de Lavergne, M.
AU - Breuhaus, M.
AU - Brose, R.
AU - Bulik, T.
AU - Bylund, T.
AU - Cangemi, F.
AU - Caroff, S.
AU - Casanova, S.
AU - Catalano, J.
AU - Chambery, P.
AU - Chand, T.
AU - Chen, A.
AU - Cotter, G.
AU - Curyło, M.
AU - Damascene Mbarubucyeye, J.
AU - Davids, I. D.
AU - Davies, J.
AU - Devin, J.
AU - Djannati-Ataï, A.
AU - Dmytriiev, A.
AU - Fegan, S.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)
PY - 2022/3/18
Y1 - 2022/3/18
N2 - We present here, follow-up observations of four Binary black hole BBH events performed with the High Energy Stereoscopic System (H.E.S.S.) in the Very High Energy (VHE) gamma-ray domain during the second and third LIGO/Virgo observation runs. Detailed analyses of the obtained data did not show significant VHE emission. We derive integral upper limit maps considering a generic E−2 source spectrum in the most sensitive H.E.S.S energy interval ranging from 1 to 10 TeV. We also consider Extragalactic Background Light absorption effects and derive integral upper limits over the full accessible energy range. We finally derive upper limits of the VHE luminosity for each event and compare them with the expected VHE emission from GRBs. These comparisons allow us to assess the H.E.S.S. gravitational wave follow-up strategies. For the fourth GW observing run O4, we do not expect to fundamentally alter our observing strategy, and will continue to prioritize sky coverage like for the previous runs.
AB - We present here, follow-up observations of four Binary black hole BBH events performed with the High Energy Stereoscopic System (H.E.S.S.) in the Very High Energy (VHE) gamma-ray domain during the second and third LIGO/Virgo observation runs. Detailed analyses of the obtained data did not show significant VHE emission. We derive integral upper limit maps considering a generic E−2 source spectrum in the most sensitive H.E.S.S energy interval ranging from 1 to 10 TeV. We also consider Extragalactic Background Light absorption effects and derive integral upper limits over the full accessible energy range. We finally derive upper limits of the VHE luminosity for each event and compare them with the expected VHE emission from GRBs. These comparisons allow us to assess the H.E.S.S. gravitational wave follow-up strategies. For the fourth GW observing run O4, we do not expect to fundamentally alter our observing strategy, and will continue to prioritize sky coverage like for the previous runs.
M3 - Conference article
AN - SCOPUS:85145250758
SN - 1824-8039
VL - 395
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 943
T2 - 37th International Cosmic Ray Conference, ICRC 2021
Y2 - 12 July 2021 through 23 July 2021
ER -